News
- Animals
Into Hot Water: Lab test shows that worms seek heat
Worms from deep-sea vents prefer water at temperatures near the upper limit of what animals are known to survive.
- Health & Medicine
Estrogen Safety: Studies raise cancer, blood clot questions
Two studies provide conflicting findings on estrogen therapy's effect on breast cancer risk, while a third study suggests that the hormone contributes to blood clot formation.
- Health & Medicine
Microbe Hunt: Novel bacterium infects immune-deficient people
A newfound bacterium can cause illness in people who have a rare, inherited form of immune deficiency.
- Anthropology
Branchless Evolution: Fossils point to single hominid root
Fossils of a 4.1-million-year-old
